In the absence of a soaking rain, water your mature tree once per month, and young trees every other week. Water gradually and deeply, applying water to the tree's root zone, particularly around the drip line. Learn more about smart watering.

MULCH to conserve water and protect your tree

Mulch insulates tree roots, preserves moisture in the soil, suppresses weeds, and feeds nutrients into the soil as it breaks down. Apply mulch 3-5" deep over the root zone of your tree, keeping it a few inches away from the trunk to prevent rot.